Extra Cash
Go to the registry and have the computer create some characters. Keep doing this until you have the maximum number of characters possible, then delete the characters the computers made. Once you have deleted the characters, go to where you store your items and the deleted characters you started with will be there. Then sell them to get your money, and keep doing this to increase your cash.

Combos
To get combos, attack with weapons and spells of the same property. For example, have a caster use an elemental spell such as one of the fire ones that attack one opponent. Then, make sure a character is equipped with an elemental weapon such as a sword or knuckle with the same type. You can usually tell what type an item is by the name or by the resistance it gives. For example, fire resistance for a fire weapon. If you use both attacks at the same time, it has a random chance for the two characters to do a single attack, which does five to six times the damage compared to the non-combo regular damage. This works best on Bosses.

Completion bonuses
When you complete the first 10 levels and the Demon Lord, save and continue. Levels 11 to 100 are now unlocked. This basically repeats the first 10 levels until 100, but with stronger enemies and powered-up items. The new items are mixed about 50% with the old versions. You will still find things that were in the beginning of the game. The only changes in town are at the Guild where the quests have included all the monsters and new levels. Be prepared to see quests for enemies around level 800, and area searches around level 80 and up. Finding one appropriate to you may be difficult. To begin, you will only have access to levels 1 to 11, and after each 10 it repeats. Other than that, there does not seem to be anything new besides the items. All the Bosses, enemies, and levels still look the same, with the same requirements.

Faster battles
Turn the battle speed to maximum, and turn off battle animations. This will make most fights that usually last a few minutes end in about ten seconds. Only do this if you are quite strong and do not really care about strategy, but want to save time.

Green rooms
Avoid the green rooms with the round computer inside. Once you are past level 5, the advantages they may provide are not worth the risk. The positive effects they give are few and far between the negative effects.

Rare items
Compete in the Trial Battles to win rare items. You will receive one rare item for every ten battles you win. The best area for items is level 8 and each version until 98. Here, you can find over 70 items each time, and since the area is large and open, you can complete it with only twenty to thirty battles if you are good at dodging.

Traps
Always have one character with a high Trap Disarm ability. It can be frustrating clearing five areas almost getting to the Boss, then having a trapped chest send your entire party back to the surface.

if you cannot download trainer then go to Chrome/Firefox's settings, specifically to the Privacy settings and simply unchecking the "Enable phishing and malware protection" option.

Some Game Trainers are sometimes reported to be a Virus or Trojan,
the most common is a keylogger called HotKeysHook or the file
has been packed/protected with VMProtect or Themida and
is recognized as Win32/Packed.VMProtect or Win32/Packed.Themida.
In ALL cases this is a FALSE ALARM as NONE
of the Game Trainers @ GCW contain known malicious code! More info in
the PC
Games FAQ!